baber/WOPTO huggingface dataset:
Patent GB-941236-A (GB)
Title: Apparatus for installing wellhead equipment
IPC: E21B7/12
Filed: 1962-04-25
Abstract: 941,236. Wells. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. April 25, 1962 [April 27, 1961], No. 15765/62. Heading E1F. A connector for use with underwater wellhead equipment comprises a housing 71 having a bore 84, a chamber 72 in the housing, outwardly-extensible latches 70 carried by the housing, a piston 73 in the housing for actuating the latches, a conduit 90 permitting the supply of pressure fluid from the bore to the chamber to force the piston downwardly to extend the latches, and a conduit 86 permitting the supply of pressure fluid from the bore to the chamber to force the piston upwardly to free the latches. The connector may be used for running-in apparatus to the well, or removing apparatus from the well, and as shown in Fig. 2 is in use for running-in casing 40 and casing hangar 41. A ring 48 slidable on the body of the hangar is adapted to seat in the casing head 28, a seal 49 being interposed between the ring and body. Slips 50 are initially held retracted on the hangar by screws 63. On a barge above the well a pipe string 23 is fixed to the connector, the connector is inserted into the hangar, a dart 83 is placed in the bore 84, and fluid pressure is applied to the string to extend the latches and fix the connector to the hangar. As the extension of the latches also forces pins 64 into engagement with the slips the screws are removed without the slips extending. The hangar and casing are lowered by the string from the barge until the hangar seats in the casing head, the dart 83 is replaced by a dart 88, fluid pressure is applied to the string to free the latches, and the string and connector are raised to the surface. The retraction of the latches frees the slips which are urged by springs 56 to engage the surface 55 of the casing head. A cementing string 85 may be suspended from the connector.
Patent GB-330742-A (GB)
Title: An improved connector for electric conductors
IPC: H01R4/44
Filed: 1929-05-22
Abstract: 330,742. British Insulated Cables, Ltd., and Fletcher, C. May 22, 1929. Cable and wire couplings. -A conductor 19 is secured to a conductor 18, such as a line wire, by a metal strip 11 bent to S-shape with extended ends 12, 13 and a bolt 4 passing through holes in the centre and each end of the strip. The end portions 12, 13 may be plain for use with an ordinarv bolt and washer or may be formed with transverse ribs 14, 15 that enter grooves 24, 27 in washers 20, 21.
Patent GB-497063-A (GB)
Title: Improvements in mirrors and the like reflectors
IPC: F21V7/00
Filed: 1937-06-09
Abstract: 497,063. Changing signs. COOPER, R. D. June 9, 1937, No. 16012. Drawings to Specification. [Class 3 (i)] [Also in Group XIV] A translucent mirror is produced by removing the reflective coating along closely adjacent fine parallel lines by ruling with a finely pointed tool, preferably in a ruling machine. The mirror may be backed by a coloured transparency and enclosed in an open-fronted box having means for intermittently illuminating the rear of the mirror to cause it to appear transparent.
Patent GB-724611-A (GB)
Title: Improvements relating to rail vehicles
IPC: B61F5/14
Filed: 1953-06-10
Abstract: 724,611. Mounting bodies on railway vehicles. GENERAL ELECTRIC CO. June 10, 1953 [July 16, 1952], No. 16017/53. Class 103 (6). A railway vehicle body 6 is supported on a truck 1 by one or more lengths of flexible cable 19 connected at one end to the truck frame and at the other end to the vehicle body, the connection to the truck frame being located above the connection to the vehicle body so that the cable serves as a hanger, permitting limited pivotal and transverse motion of the truck with respect to the vehicle body. As shown, projections 7, 8 extending downwardly from the body 6 are connected by a gib member 10 with its end portions fitting in slots 12 in plate members secured to the projections. The gib is connected to the lower ends of flexible cables 19 which at their upper ends are connected to a hook 17 secured to a bolster 16 connecting the side frames 2 of the truck 1. The gib and hook 17 are provided with tapered sockets to receive tapered plugs 20, to which the ends of the cables are attached. Slots 21 wide enough to pass the cables are provided to enable the cables to be detached from the hook 17. The cables 19 are inclined downwardly away from the truck 1, to dampen transverse swinging of the body 6 with respect to the truck.
Patent GB-665218-A (GB)
Title: Improvements relating to catalysts
IPC: B01J23/76
Filed: 1949-06-16
Abstract: A catalyst for use in the synthesis of hydrocarbons from carbon monoxide and hydrogen and containing 25-35 per cent metallic iron, 50-61 per cent ferrous oxide and 4-25 per cent ferric oxide is prepared by precipitating the hydroxides and/or carbonates of iron together with those of activating metals, e.g., copper, calcium or zinc, from mixed nitrate solutions by the addition of sodium carbonate and reducing the precipitate with a gas, e.g. hydrogen or carbon monoxide, at a temperature below 300 DEG C., preferably 200 DEG -240 DEG C., for 30-60 minutes and a gas flow of 1.3 to 1.5 metres/second.  The metals may be precipitated on carriers, e.g. kieselguhr, aluminium oxide or magnesium oxide and prior to reduction the precipitate may be impregnated with an alkali metal compound e.g. potassium hydroxide, potassium silicate or potassium orthophosphate.
Patent GB-374263-A (GB)
Title: Improvements in and relating to means for the operation of brakes of fluid pressure braking systems
IPC: B60T13/24
Filed: 1931-06-04
Abstract: 374,263. Fluid-pressure brakes. BOUGHTON, E. D., EMMOTT, W., and BROCK, D. T. (trading as AUTOMOTIVE PRODUCTS CO.), Brock House, Langham Street, London. June 4, 1931, No. 16239. [Class 103 (i).] In the master cylinder 19 of a fluid transmission system for brakes the piston 29 is connected with an operating lever 31 by means of a thrust member 26 extending into the fluid supply at the rear face of the piston through a flexible sealing member 32 attached intermediately of the member 26 which is immersed completely, except at the outside of the sealing member, in the fluid to maintain fluid at the rear face of the piston, the sealing member forming part of the wall of a supply reservoir 11 for enclosing the end of the cylinder. The master cylinder may be operated by a vacuumoperated piston 41 connected to the lever 31, the axes of the master cylinder and vacuum cylinder 39 being parallel. The cylinder 19 is received in an aperture in the reservoir 11 for the reserve supply of fluid in which the cylinder is immersed and maintained in position by a flange 21 bolted to the reservoir. The flexible sealing member is beaded at its edges and clipped to the member 26 and a flange 36 on an opening in the reservoir through which the member 26 extends. The lever 31 is pivoted at 38 to a chamber 37 integral with the cylinders 19, 39 and enclosing the lever. An adjustable bolt 45 in the chamber acts as a stop for the lever 31. A nipple 24 is connected to the fluid-pressure lines. The vacuum cylinder shown is double-ended having the mechanism duplicated at the other end and the mechanism at one end may have a higher mechanical advantage so that the braking effort applied by one master cylinder is greater than that applied by the other. The master cylinders may have a common reserve tank. A modification is shown in which the rear face of the piston is enclosed in the flexible sealing member connected with a separate reserve reservoir on the dashboard. The flexible member comprises a corrugated tube larger at one end than the other. The master piston is connected with a vacuumoperated piston by an angularly adjustable lever. The sealing member may be in the form of a diaphragm. The operating lever may extend through the flexible sealing member to act directly on the piston. The operating lever may be operated by hand or foot. Specifications 328,305 and 328,307, [both in Class 103 (i), Brakes &c.], are referred to.
Patent GB-439188-A (GB)
Title: Manufacture of basic copper chlorides
IPC: C01G3/06
Filed: 1934-05-31
Abstract: Basic cupric chlorides are obtained by oxidizing copper with oxygen or gases containing it in the presence of a suspension of cuprous chloride in an aqueous solution of a halide of an alkali or alkaline-earth metal.  Raised pressures and elevated temperatures may be used.  In examples, sodium chloride, calcium chloride, and potassium bromide are employed as halogen salts. Specification 321,260, [Class 1 (i)], is referred to.
Patent GB-209385-A (GB)
Title: Improvements in or relating to drilling and screw cutting devices
IPC: F16D7/08
Filed: 1923-06-22
Abstract: 209,385. Automat - Industrie - Ges. Jan. 8, 1923, [Convention date]. Drilling; attachments for screwing and tapping. -An attachment for drilling and screw-cutting comprises a friction clutch which may be disengaged when either the rotational torque or the axial-feed pressure on the tool becomes excessive, the clutch being re-engaged when the torque or pressure becomes normal. The driving member 1 has a depending flange 1<b> provided with slots 1<a> in which engage lugs 4<a1> on a clutch disc 4<a>, a second disc 4b being attached to the driven member 3. Balls 4<c> attached to a cage 4d engage circular pockets in the clutch discs and are pressed into engagement therewith by springs 6 and a nut 8. The springs 6 are provided with arms 6<a>, Fig. 5, which bear on pins 4f, Fig. 1, attached to the lower disc, the resilience being adjustable by means of a pin 12 on a rotatable sleeve 5. A scale on the member 1 and a pointer on the sleeve determine the setting for different-sized tools. When the axial-feed pressure exceeds a predetermined amount the member 3 is raised relatively to the member 1 against springs 13, constructed similarly to the springs 6, and the clutch discs are separated. The springs 13 are adjusted simultaneously with the springs 6 by a lug 13<d> engaging a slot in the sleeve 5, which is secured to the member 1 by a wire ring 17. A disc 16 secured to the member 3 indicates upward movement of this member and may be used to operate an acoustic or optical signal. A shaft 2 serves to centre the device. The arms of the springs 6 and 13 may increase in breadth and thickness towards their roots and may take the form shown in Fig. 7, in which one spring 18 is secured against rotation by pins 21 and is engaged by pins 20 on a rotatable spring 19. The device may also be used in tap wrenches. The Specification as open to inspection under Sect. 91 (3) (a) states also that the device may be used also in hand tools, die-stocks and as a toolholder or drill chuck, and may be incorporated in the drill or feed-spindles of machine tools. This subject-matter does not appear in the Specification as accepted.
Patent GB-1475241-A (GB)
Title: Benzodiazocine derivatives and pharmaceutical compositions  containing them
IPC: C07D245/06
Filed: 1976-04-09
Abstract: 1475241 Benzodiazocine derivatives DDSA PHARMACEUTICALS Ltd 9 April 1976 [19 April 1975] 16287/75 Heading C2C The invention comprises compounds of general Formula I in which R<SP>1</SP> represents hydrogen, halogen, trifluoromethyl, cyano, nitro, lower alkyl, lower alkoxy or lower alkyl thio, R<SP>2</SP> represents lower alkyl, R<SP>3</SP> represents lower alkyl or benzyl, A represents a group or a group and R<SP>4</SP> represents phenyl, (lower alkyl)-phenyl, nitrophenyl, halophenyl or pyridyl; "lower" signifies C 1 -C 6 . Addition salts with pharmacologically accepted acids are also claimed. Compounds of Formula I or their salts may be obtained by treating a compound of formula with an alcohol R<SP>2</SP>OH, e.g. by refluxing with a molar excess of the alcohol for 1-6 hours or by treating a compound of formula with alcohol R<SP>2</SP>OH, e.g. by passing a solution in the alcohol over a basic ion-exchange resin. The invention is exemplified by 8-chloro-2- methoxy - 2 - methylamino - 6 - phenyl - 1,5- benzodiazocine-5-oxide, and the corresponding compound with an ethoxy instead of a methoxy group. The compounds may be used in therapeutic compositions.
Patent GB-1345396-A (GB)
Title: Apparatus for linearly converting a mechanical quantity into a frequency
IPC: G01L1/10
Filed: 1971-05-21
Abstract: 1345396 Measuring force,displacement electrically PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 21 May 1971 [26 May 1970] 16309/71 Heading G1N Apparatus for linearly converting a mechanical quantity into a frequency of vibration comprises a vibratory beam capable of being vibrated at a resonant frequency about its transverse axis Y by a vibration generator (not shown), a device (having jaws B) to which the mechanical quantity is applied for varying the resonant frequency by variation of the bending stiffness of the beam and means for indicating the frequency of vibration (not shown) in which the vibratory beam is a leaf spring F having a narrow cross section in a plane perpendicular to its longitudinal axis X and the mechanical quantity is applied to produce a bending in this plane. In the Fig. 4 embodiment the forces to be measured are applied to ends of levers H of which the other ends engage the edges of the leaf spring. The leaf spring may be entirely or partially of a Piezo-electric or magnetostrictive material.
Patent GB-752148-A (GB)
Title: Improvements in light sensitive colour photographic materials
IPC: G03C7/392
Filed: 1954-06-02
Abstract: 2:21 - Methylene bis - (5 - tert. - butyl - 4-methoxy-phenol) is prepared by reacting formalin with 3-tert.-butyl-4-methoxy-phenol in benzene, in the presence of calcium chloride, hydrochloric acid and thioglycollic acid.  2:21 - Isobutylidene bis - (5 - tert. - butyl-4-methoxy-phenol) is similarly prepared using isobutyraldehyde instead of formalin.  By using 4-methoxy-phenol instead of 3-tert.-butyl-4-methoxy-phenol in the preparation, 2:21-isobutylidene bis-(4-methoxy-phenol) is obtained.  2:21 - Methylene bis - (5 - n - octadecyl hydroquinone) is prepared by demethylating 1:11 - methylene bis - (2:5 - dimethoxy-4-octadecylbenzene) with AlCl3 in boiling dry benzene.  p:p1 - Biphenylene bis - (aminomethyl hydroquinone) is prepared by the reduction with hydrogen and Raney nickel of 4:41-bis-(2:5-dihydroxybenzalamino) diphenyl, prepared by refluxing benzidine with gentisaldehyde in n-butanol. Specifications 2562/13, [Class 98 (ii)], 524,154, 524,554, 524,555, 541,589, 545,448, 545,732, 557,750, 557,802, [all in Group XX], 562,205, 680,488 and 739,913 are referred to.
Patent GB-1378463-A (GB)
Title: Thermosetting moulding compositions
IPC: C08L101/00
Filed: 1972-04-10
Abstract: 1378463 Moulding compositions DIAMOND SHAMROCK CORP 10 April 1972 [7 Sept 1971] 16438/72 Heading C3P A thermosetting moulding composition comprises 30-70 parts of an unsaturated polyester, 29-69 parts of an ethylenically unsaturated monomer having at least one CH 2 =C< group and 1-10 parts of a styrene/diene block copolymer containing 27-1% of styrene and with a total molecular weight of 73,000- 150,000. This moulding composition is compounded with an initiator, filler, mould release, pigment and is either mixed with reinforcing fibres and moulded with heating to form an article or impregnated on to a reinforcing mat and then moulded. In examples the polyesters are formed from propylene glycol, isophthalic acid and maleic anhydride or fumaric acid, or from maleic anhydride, brominated tetrahydrophthalic anhydride and mixed glycols, the unsaturated monomer used is styrene optionally with methyl methacrylate or vinyl acetate and the block copolymer is either a styrene / butadiene / styrene or styrene/ isoprene/styrene copolymer. Other additives exemplified are t-butyl perbenzoate or peroctanoate, zinc stearate, calcium carbonate, pigment, glass fibre or glass fibre mat and antimony trioxide. Comparative examples wherein the block copolymer is omitted or is replaced by polybutadiene, vinyl chloride/vinyl acetate copolymer, polymethyl methacrylate, polyvinyl fluoride, polyvinylidene fluoride and polystyrene are also described.
Patent GB-217769-A (GB)
Title: Improvements in or relating to the steam and exhaust connections of drying cylinders, calenders, and the like
IPC: F16L39/04
Filed: 1923-06-26
Abstract: 217,769. Milne, S. June 26, 1923. Rollers or cylinders, hollow.-A steam inlet or exhaust connection for drying cylinders, calenders, &c. of the kind having a central tube h rotating with the stem a comprises a stem and socket having coacting surfaces of different radii and a common centre. The surfaces are held in contact by a spring-pressed collar mounted upon studs secured in the socket. In use, steam passes through the extension p and the ports g in the stem into the cylinder, while the exhaust steam and condensate pass away through the pipe h. An additional tube v may be secured to the stem to distribute the steam.
Patent GB-997458-A (GB)
Title: Interchangeable cutter bit for plough-action winning devices used for the winning of coal underground
IPC: E21C27/44
Filed: 1963-04-26
Abstract: 997,458. Mineral-mining ploughs. GEWERKSCHAFT EISENHUTTE WESTFALIA. April 26, 1963 [May 7, 1962], No. 16512/63. Heading E1F. Each cutter portion of a mineral-mining plough comprises a wear-resisting cutter cap 3 fitted over and detachably secured to a stud 2 secured to the body of the plough.
Patent GB-1039111-A (GB)
Title: 2-[2-(5-nitrofuryl)-vinyl]-azoles and process for their production
IPC: C07D417/06
Filed: 1963-04-26
Abstract: The invention comprises nitrofuran derivatives of the formula <FORM:1039111/C2/1> in which X is a sulphur or oxygen atom, or an imino group which may be substituted with an acetyl or propionyl group or an alkyl group of 1 to 3 carbon atoms, each of R1 and R2, is a hydrogen atom or an alkyl group of 1 to 3 carbon atoms, or R1 and R2 when taken together form a butadienylene radical which forms an extended aromatic structure with the azole ring to which it is attached.  The compounds are prepared by condensing an appropriate 2-methylazole and 5-nitrofurfural, e.g. at 50 DEG  to 150 DEG  C., in the presence of a condensing agent and preferably in an inert solvent.  The 1-acyl-2-[2-(5-nitro-2-furyl)-vinyl] -imidazoles may also be prepared by (a) condensing a 2-methyl-imidazole and 5-nitrofurfural in the presence of acetic or propionic anhydride or (b) acylating a 2-[2-(5-nitro-2-furyl)-vinyl] -imidazole with an appropriate acylating agent.  The compounds have anti-bacterial activity.  Reference has been directed by the Comptroller to Specification 966,832.
Patent GB-529690-A (GB)
Title: Improvements in and relating to synthetic resinous compositions and methods of making the same
IPC: C08G8/28
Filed: 1939-06-06
Abstract: 529,690. Phenol-aldehyde condensation products. BRITISH THOMSON-HOUSTON CO., Ltd. June 6, 1939, No. 16613. Convention date, June 8, 1938. [Class 2 (iii)] Resinous condensation products are prepared by condensing, in the presence of an acid catalyst, formaldehyde and mixture of a phenol and an oily body obtained from the destructive distillates of wood, preferably a hard wood. The product will react with methylene containing agents to yield hardenable condensates. In examples (1) a mixture of " wood oil," crude phenol and aqueous formaldehyde is condensed in the presence of sulphuric acid, partially dehydrated, the acid neutralized with calcium hydroxide and the dehydration completed : moulded articles may be prepared from a composition comprising the product, hexamethylenetetramine, calcium hydroxide, calcium stearate and wood flour with or without the addition of a dye such as nigrosine and talc ; (3) a mixture of " wood oil," crude phenol, crude cresol, and aqueous formaldehyde is condensed in the presence of sulphuric acid, partially dehydrated, the acid neutralized with calcium hydroxide and the dehydration completed. Specification 511,223 is referred to.
Patent GB-1006194-A (GB)
Title: Improvements in or relating to glass
Inventor: PIROOZ PERRY PARVIZ
IPC: C03C3/074
Filed: 1963-05-28
Abstract: A glass for sealing to or between low expansion hard glasses with thermal expansion coefficients of 35 to 50 x 10-7 and is devitrifiable within a period of 1 hour at a temperature from 675-750 DEG  C., consists essentially of, in weight percentages, PbO 4.5 to 5.5; B2O3 17 to 19; ZnO 59 to 61; SiO2 14 to 16; and CuO 2 to 3. The glass has a liquidus temperature above 1900 DEG  F. and fibre softening point between 600 DEG  and 700 DEG  C.
Patent GB-758693-A (GB)
Title: Improvements in or relating to means for heating fluids
IPC: F24J3/00
Filed: 1954-06-08
Abstract: 758,693. Heating fluids by friction. CHRISTIANSEN, H. June 8, 1954 [June 9, À 1953], No. 16788/54. Class 64(2). A flowing fluid, which may be a gas or a liquid, is heated frictionally by a hydraulic brake rotor 9 driven by a prime mover, e.g. an internal combustion engine 8, and mounted in a casing 2 which has an inlet 4 and an outlet 12 for the fluid to be heated. The rotor also draws the fluid into the inlet 4 and conveys it to a point of consumption. The fluid leaving the brake may also be further heated by being passed through jackets 7, 10 around the engine and its exhaust pipe. If the fluid is gaseous, the exhaust gases may finally be ejected into it to heat it. The fluid may flow in an open or closed circuit. The engine shaft 14 may be connected to a gear or pulley to drive a vehicle carrying the frictional heater, or to drive a generator, pump or other machine. Clutches are provided between the shaft 14, the rotor 9, and the other apparatus driven by the shaft.
Patent GB-1603414-A (GB)
Title: Tea bags
IPC: D06M13/184
Filed: 1977-04-22
Abstract: The novel tea bag is composed of sheet materials impregnated with acidic substances. The acidic substance is citric acid, malic acid, glutaric acid, tartaric acid, succinic acid, potassium dihydrogen phosphate and/or monosodium hydrogen sulphate and is present in an amount of 0.03 to 0.5 mg/cm<2>. The sheet material is generally paper. On contact with water, an acidic reaction is caused therein. The colour of aqueous infusions, which are produced with these tea bags, is considerably better than with the previous tea bags. The sheet material can be impregnated by dipping conventional tea bag paper into an aqueous solution of the acidic substance or spraying it with this and then drying it.
Patent GB-930219-A (GB)
Title: Improvements in lenses
IPC: G02C7/02
Filed: 1961-05-09
Abstract: 930,219. Spectacle lens. J. H. JEFFREE. April 27, 1962 [May 9, 1961], No. 16876/61. Drawings to Specification. Class 97 (1). A concavo-convex spectacle lens has a convex surface, the mean curvature of which at its centre is greater than 0.4 cms., and one of its surfaces is non spherical with its curvature increasing or decreasing towards its edges according as to whether it is concave or convex respectively. In particular the concave surface may be a surface of revolution with the equation: Qx<SP>2</SP> + By<SP>4</SP> + y<SP>2</SP> - 2Rx = O, where Q, B are constants, R is the radius of curvature at the centre, x is the departure of the curve from the plant tangent to the pole thereof, y is the distance from the axis of revolution. Examples are given.
Patent GB-141254-A (GB)
Title: An improved silencer for internal combustion engines
IPC: F01N1/08
Filed: 1919-07-05
Abstract: 141,254. Chamberlain, R. E. July 5, 1919. Exhaust-silencers. - A silencer comprises a tubular casing c with flared tubes or partitions d, axially disposed in the casing with a clear passage from end to end, the larger ends of the tubes d being directed towards the exhaust inlet a. The smaller ends are preferably not less in diameter than the exhaust pipe.
Patent GB-217433-A (GB)
Title: Improvements in and relating to perambulators, bath chairs and other hand propelled vehicles
IPC: B62B9/26
Filed: 1923-06-29
Abstract: 217,433. Southorne, W. H. June 29, 1923. Parcel holders.-A detachable box - like parcel - holder 1 is carried by the rear panel 6 of a perambulator. Inverted key-hole slots 7 in the back of the box engage screws 5. Rubber pads 8 are provided on the back of the box. According to the Provisional Specification the box may be collapsable and a flexible cover mounted on a spring-biassed roller may be provided.